56k miles - 2008 E93 - never track but high-rev's regularly - only two issues: 1) now automatic trunk release not work with key fob and not work with trunk release - need to use manual key to open trunk; and 2) launch control not come up (used it successfully before in 2008-2009 - didnt even attempt to use again until a few months ago when
Unsuccessful - not tried since). Car runs great otherwise!